 body{
  padding: 25px;
 }
 img{
  float:right;
  width:225px;
 }
 #dialogo{
  float:left;
  width:300px;
  padding-bottom: 15px;
 }
 #error{
  border-top: 1px solid gray;
  clear: both;
  padding-top: 15px;
 }
 #ex{
  color: red;
  font-weight: bold;
 }
 #source{
  color: blue;
  font-style: italic;
 }